1893CKLFT IDT, 1893CKLFT Datasheet - Page 72
1893CKLFT
Manufacturer Part Number
1893CKLFT
Description
Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
Manufacturer
IDT
Datasheet
1.1893CFLF.pdf
(121 pages)
Specifications of 1893CKLFT
Rohs
yes
Part # Aliases
ICS1893CKLFT
- Current page: 72 of 121
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7.11.7 Invalid Error Code Test (bit 16.2)
7.11.8 ICS Reserved (bit 16.1)
7.11.9 Stream Cipher Disable (bit 16.0)
ICS1893CK-40, Rev. C, 06/02/09
The Invalid Error Code Test bit allows an STA to force the ICS1893CK-40 to transmit symbols that are
typically classified as invalid. The purpose of this test bit is to permit thorough testing of the 4B/5B encoding
and the serial transmit data stream by allowing generation of bit patterns that are considered invalid by the
ISO/IEC 4B/5B definition.
When this bit is logic:
•
•
Table 7-17. Invalid Error Code Translation Table
See
The Stream Cipher Disable bit allows an STA to control whether the ICS1893CK-40 employs the Stream
Cipher Scrambler in the transmit and receive data paths. When this bit is set to logic:
•
•
Note:
Symbol
Zero, the ISO/IEC defined 4B/5B translation takes place.
One – and the TXER signal is asserted by the MAC – the MII input nibbles are translated according to
Table
Zero, the Stream Cipher Encoder and Decoder are both enabled for normal operations.
One, the Stream Cipher Encoder and Decoder are disabled. This action results in an unscrambled data
stream (for example, the ICS1893CK-40 transmits unscrambled IDLES, and so forth.
V (S)
Section 7.11.2, “ICS Reserved (bits
V
V
V
V
H
V
V
R
V
V
K
V
T
J
I
The Stream Cipher Scrambler can be used only for 100-MHz operations.
7-17.
ICS1893CK-40 Data Sheet - Release
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Error
Invalid Code
Invalid Code
ESD
Invalid Code
ESD
Invalid Code
SSD
Invalid Code
Invalid Code
SSD
Idle
Meaning
Copyright © 2009, Integrated Device Technology, Inc.
MII Input
Nibble
0000
0001
0010
0011
0100
0101
0110
1000
1001
1010
1011
1100
1101
0111
1110
1111
16.14:11)”, the text for which also applies here.
Translation
00000
00001
00010
00100
00101
00000
10001
10000
00011
00110
00111
01101
01100
11001
11000
All rights reserved.
11111
72
Chapter 7 Management Register Set
June 2009
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